Description Of Major Ics - JVC XV-S62SL Service Manual

Description of major ICs

AK93C65AF-X(IC403):EEPROM
1.Pin layout
PE 1 8
VCC 2 7
CS 3 6
SK 4 5
2.Block diagram
INSTRUCTION
DI
REGISTER
CS
SK
PE
3.Pin function
Pin No. Symbol
1 PE
2 VCC
3 CS
4 SK
5 DI
6 DO
7 GND
8 NC
Attention : Resistors of pin No.1(PE) are 2.5M ohm.
NC
GND
DO
DI
REGISTER
INSTRUCTION
DECODE,
CONTROL
AND
CLOCK
GENERATION
BUFFERS
Description
Program enable (Resistance with built-in pull-up)
Power supply terminal
Chip select
Serial clock input
Serial data input
Serial data output
Connect to ground
Non connect
DATA
16
R/W AMPS
AND
AUTO ERASE
ADD.
DECODER
VPP SW
VREF GENERATOR
DO
16
EEPROM
4096bit
256 x 16
VPP
XV-S62SL
1-23